in the new nbc poll, no change in florida, obama by one. romney ahead now in virginia, up three since the debate. romney up two in ohio, trailing by six. >> you talk about single digits having picked sides as a result of the debate and romney got the advantage there. we see a slight closing in these tossup numbers in these three critical states. >> reporter: more pressure on the number two candidates who face off tonight. in their debate here, on domestic and foreign policy, biden and ryan will be seated, which normally leads to a lower energy level. from danville, kentucky, i'm steve handelsman, news4. >>> a security official at the u.s. embassy in yemen was assassinated today near his house. the state department has identified him as kasim atlan. he worked there for 11 years. he was off-duty and running errands with a family member when a gunman on a motorcycle pulled up and opened fire. that gunman got away. state department officials say it's too early to know whether his embassy job made him a target for murder. they say it is prematur